Elicit non-trivial dialogue from students. Guide students to reflection and analysis of the experience. Encourage students to share their perceptions and beliefs. Summarize and review similarities and differences.

Discussion of progression activity.

Objective: To examine the similarities and differences of tools. To understand how and why improvements are made in existing tools.

Activity: Students will eat the products and analyze the different characteristics of the pudding produced at each station. Students will analyze the series of tools. Students will note the attributes of the tool and the product made at each station. Students will observe the improvement of the tool from station to station and the changing attributes of the ensuing product.

Assessment: Student participation and verbal response.